[RndTbl] can't stop md yet lsof is empty?

Adam Thompson athompso at athompso.net
Sat Mar 16 17:17:50 CDT 2013

Stale NFS handles?  Try lsof|grep MD instead?

Trevor Cordes <trevor at tecnopolis.ca> wrote:

>Very weird problem here:
>I umounted the filesystem on a md (RAID1) device.
>mdadm --stop /dev/md1
>mdadm: Cannot get exclusive access to /dev/md1:Perhaps a running process, 
>mounted filesystem or active volume group?
>lsof /dev/md1
>I remounted the fs and tried lsof <fs> and it was empty too.
>I can't seem to find any reason why mdadm --stop should not allow stopping 
>this array.  Any ideas?  Anything other than lsof that can help find out 
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